49747817 has 4 divisors (see below), whose sum is σ = 56854656. Its totient is φ = 42640980.

The previous prime is 49747807. The next prime is 49747823. The reversal of 49747817 is 71874794.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49747817 - 2²² = 45553513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49747807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553409 + ... + 3553422.

It is an arithmetic number, because the mean of its divisors is an integer number (14213664).

Almost surely, 2^49747817 is an apocalyptic number.

It is an amenable number.

49747817 is a deficient number, since it is larger than the sum of its proper divisors (7106839).

49747817 is an equidigital number, since it uses as much as digits as its factorization.

49747817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7106838.

The product of its digits is 395136, while the sum is 47.

The square root of 49747817 is about 7053.2132393683. The cubic root of 49747817 is about 367.7827389011.

The spelling of 49747817 in words is "forty-nine million, seven hundred forty-seven thousand, eight hundred seventeen".